diff --git a/pkg/channels/qq/qq.go b/pkg/channels/qq/qq.go
index 112964143..e03f75f75 100644
--- a/pkg/channels/qq/qq.go
+++ b/pkg/channels/qq/qq.go
@@ -3,7 +3,10 @@ package qq
 import (
 	"context"
 	"fmt"
+	"regexp"
+	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/tencent-connect/botgo"
diff --git a/pkg/heartbeat/service.go b/pkg/heartbeat/service.go
index ef836d31e..2364636e4 100644
--- a/pkg/heartbeat/service.go
+++ b/pkg/heartbeat/service.go
@@ -7,6 +7,7 @@
 package heartbeat
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"path/filepath"
diff --git a/pkg/skills/loader.go b/pkg/skills/loader.go
index 71c9d80c5..daf492a5c 100644
--- a/pkg/skills/loader.go
+++ b/pkg/skills/loader.go
@@ -10,6 +10,11 @@ import (
 	"regexp"
 	"strings"
 
+	"github.com/gomarkdown/markdown"
+	"github.com/gomarkdown/markdown/ast"
+	"github.com/gomarkdown/markdown/parser"
+	"gopkg.in/yaml.v3"
+
 	"github.com/sipeed/picoclaw/pkg/logger"
 )
 
diff --git a/pkg/tools/filesystem.go b/pkg/tools/filesystem.go
index b4e28020a..e80893cd5 100644
--- a/pkg/tools/filesystem.go
+++ b/pkg/tools/filesystem.go
@@ -2,14 +2,20 @@ package tools
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"io"
 	"io/fs"
+	"math"
 	"os"
 	"path/filepath"
+	"regexp"
+	"strconv"
 	"strings"
 	"time"
 
 	"github.com/sipeed/picoclaw/pkg/fileutil"
+	"github.com/sipeed/picoclaw/pkg/logger"
 )
 
 // validatePath ensures the given path is within the workspace if restrict is true.
diff --git a/pkg/tools/web.go b/pkg/tools/web.go
index 9cc2e3166..bf9c795c5 100644
--- a/pkg/tools/web.go
+++ b/pkg/tools/web.go
@@ -4,12 +4,15 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
+	"net"
 	"net/http"
 	"net/url"
 	"regexp"
 	"strings"
+	"sync/atomic"
 	"time"
 )